Of course, the plot thickens as I've found they also offer a GS-230 stove in Japan. This one appears to function similar to the GS-1000 and Baja Burner -- in the sense that it uses the gas cylinders inverted.
Each burner is rated at 3,000 Kcal/h which is 11,905 Btu/h (vs the 2,800 Kcal/h or...